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97 Lumina backfires dies when driving

Tiny
JBURNS9329
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 180,000 MILES
I got a 97 lumina starts up fine idles perfect but when I go to drive it it will make a 10th of a mile and start dieing out misfiring and sometimes backfiring throws no codes checked the fuel pump it's good dropped the tank it was clean as a whistle I ran


some seafoam through it and it ran good for about 30 miles then it started acting up again I checked the maf it was good have new spark plugs n spark plug wires good oil already checked to see if it was blown head gasket which it wasnt please give me some kind of help thanks!
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Monday, January 4th, 2016 AT 6:33 PM

8 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure with a gauge may be low should be 41-47 psi key on only check compression as well.
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Tuesday, January 5th, 2016 AT 6:30 AM
Tiny
JBURNS9329
  • MEMBER
  • 4 POSTS
I've checked the fuel pressure it's good. That's the only thing I haven't checked
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Tuesday, January 5th, 2016 AT 9:04 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Normally a blown head gasket willnot prevent it from starting. Try another key if you have one then scan for codes.
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-1
Tuesday, January 5th, 2016 AT 9:25 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for a bad timing chain as well as I don't know mileage of car.
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Tuesday, January 5th, 2016 AT 9:26 AM
Tiny
JBURNS9329
  • MEMBER
  • 4 POSTS
It's got 186 and it doesn't throw codes it's not a blown head gasket
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Tuesday, January 5th, 2016 AT 10:05 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check firing orderand for leakage. Check plug gap check for vacuum leaks and check injector resistance. 11-13 ohms each what is fuel pressure? Psi and firing order for a 3.1L shown
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Tuesday, January 5th, 2016 AT 10:27 AM
Tiny
JBURNS9329
  • MEMBER
  • 4 POSTS
Checked the fire order it's good gonna check the gaps today and I don't think it's leaking no vacuum leaks the fuel pressure was between 41 n 47
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Tuesday, January 5th, 2016 AT 11:17 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then it has be like a coil breaking down or thing similar. I have no further suggestions
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Tuesday, January 5th, 2016 AT 11:59 AM

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